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@enjalot

enjalot/.block

Last active May 22, 2016 19:09
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Interrupted Sinusoidal: 12 lobes
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.block
license: gpl-3.0
Raw
README.md
Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
background: #fcfcfa;
}
.stroke {
fill: none;
stroke: #000;
stroke-width: 1px;
}
.fill {
fill: #fff;
}
.graticule {
fill: none;
stroke: #777;
stroke-width: .5px;
stroke-opacity: .5;
}
.land {
fill: #222;
}
.boundary {
fill: none;
stroke: #fff;
stroke-width: .5px;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/d3.geo.projection.v0.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script>
var width = 960,
height = 500;
var n = 12; // 12 sinusoidal sections
var w = 360 / n;
var northern = []
var southern = []
d3.range(n).forEach(function(i) {
var north = [ ];
var south = [ ];
// left
north.push([
-180 + i * w,
0
])
// top
north.push([
-180 + i * w + w/2,
90
])
// right
north.push([
-180 + i * w + w,
0
])
// left
south.push([
-180 + i * w,
0
])
// top
south.push([
-180 + i * w + w/2,
-90
])
// right
south.push([
-180 + i * w + w,
0
])
northern.push(north)
southern.push(south)
})
var projection = d3.geo.interrupt(d3.geo.sinusoidal.raw)
.lobes([northern, southern])
/*
.lobes([
[ // northern hemisphere
[[-180, 0], [-100, 90], [ -40, 0]],
[[ -40, 0], [ 0, 90], [ 40, 0]],
[[ 40, 0], [ 100, 90], [ 180, 0]]
],
[ // southern hemisphere
[[-180, 0], [-100, -90], [ -40, 0]],
[[ -40, 0], [ 0, -90], [ 40, 0]],
[[ 40, 0], [ 100, -90], [ 180, 0]]
]
])
*/
.rotate([0, 0])
.scale(150)
.translate([width / 2, height / 2])
.precision(.1);
var graticule = d3.geo.graticule();
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var defs = svg.append("defs");
defs.append("path")
.datum({type: "Sphere"})
.attr("id", "sphere")
.attr("d", path);
defs.append("clipPath")
.attr("id", "clip")
.append("use")
.attr("xlink:href", "#sphere");
svg.append("use")
.attr("class", "stroke")
.attr("xlink:href", "#sphere");
svg.append("use")
.attr("class", "fill")
.attr("xlink:href", "#sphere");
svg.append("path")
.datum(graticule)
.attr("class", "graticule")
.attr("clip-path", "url(#clip)")
.attr("d", path);
d3.json("https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/world-50m.json", function(error, world) {
if (error) throw error;
svg.insert("path", ".graticule")
.datum(topojson.feature(world, world.objects.land))
.attr("class", "land")
.attr("clip-path", "url(#clip)")
.attr("d", path);
svg.insert("path", ".graticule")
.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
.attr("class", "boundary")
.attr("clip-path", "url(#clip)")
.attr("d", path);
});
</script>
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